In a post-apocalyptic world ravaged by a mysterious, lethal virus, Wade Vogel searches desperately for his teenage daughter, Maggie. After two weeks, he finds her in a quarantine hospital, infected but still alive. Despite strong advice to send Maggie to quarantine, Wade takes her home to care for her during her last days. Life on their secluded farm becomes a grim waiting game as Maggie's condition worsens. Wade fiercely protects Maggie, even though the virus causes her to display increasingly dangerous symptoms as she transitions into a flesh-eating zombie.

Tensions develop within the family as Wade's wife, Caroline, struggles with the ominous reality of Maggie's fate. Meanwhile, local law enforcement and health officials pressure Wade to surrender Maggie to quarantine facilities, where the infected face a cruel fate. As Maggie's transformation becomes inevitable, Wade confronts devastating choices that test the boundaries of his fatherly love and moral convictions, facing the heart-wrenching dilemma between keeping his daughter close or sparing her further suffering.